At the apex of Mt. Coronet, the player must stand upon the tile which resembles the Azure Flute. When the Flute is played, a staircase appears at the base of the tile, allowing the player to climb up and challenge Arceus.

Trivia

If Arceus is defeated during any moment of the Azure Flute event, the player may come back to Spear Pillar to rechallenge it using the same method. If the player successfully captures Arceus, then the flute will no longer become playable, giving the message "The Azure Flute echoed hollowly".